Put it in your pocket!
1957 BMW Isetta 300 in cherry condition. Spied this on Queen Anne Hill and fell instantly in love with it. Four wheels, but the rear wheels are closer together than the front. I understand from the owner that these were originally 3 wheel cars, but they added a fourth for stability. He says they were built to run on a BMW motorcycle engine. The door is actually the bonnet/dash. Took this with my iPhone.
Thanks for your views. Was surprised to see this hit Explore.